package com.oop.richterSubstitution;

/**
 * @author Vhong
 * @version 1.0
 */
public class Client {
    public static void main(String[] args) {
        Add add = new Add();
        Subtraction sub = new Subtraction();
        System.out.println("100+50="+add.add(100,50));
        System.out.println("100-80="+sub.sub(100,80));
        System.out.println("100+20+100="+add.add1(100,20));
    }
}
